Portable monitor



FIG. 1 is a front perspective view of the portable monitor showing our new design;

FIG. 2 is a front view thereof where the rear view is a mirror image;

FIG. 3 is a left side view thereof where the right side view is a mirror image;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front perspective view in a condition that the main body has been divided into two, the display has been fully expanded and the lower supports are protruded;

FIG. 7 is a front view of FIG. 6;

FIG. 8 is a rear view of FIG. 6;

FIG. 9 is a left side view of FIG. 6 where the right side view is a mirror image;

FIG. 10 is a top plan view of FIG. 6; and,

FIG. 11 is a bottom plan view of FIG. 6.

The broken lines depict portions of the portable monitor that form no part of the claimed design. 

CLAIM The ornamental design for a portable monitor, as shown and described. 